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32 lines
1.2 KiB
JavaScript
32 lines
1.2 KiB
JavaScript
/// Copyright (c) 2012 Ecma International. All rights reserved.
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/// Ecma International makes this code available under the terms and conditions set
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/// forth on http://hg.ecmascript.org/tests/test262/raw-file/tip/LICENSE (the
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/// "Use Terms"). Any redistribution of this code must retain the above
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/// copyright and this notice and otherwise comply with the Use Terms.
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/**
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* Refer 11.1.5;
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* The production
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* PropertyNameAndValueList : PropertyAssignment
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* 3.Call the [[DefineOwnProperty]] internal method of obj with arguments propId.name, propId.descriptor, and false.
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*
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* @path ch11/11.1/11.1.5/11.1.5_3-3-1.js
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* @description Object initialization using PropertyNameAndValueList (PropertyAssignment) when property (read-only) exists in Object.prototype (step 3)
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*/
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function testcase() {
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try {
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Object.defineProperty(Object.prototype, "prop", {
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value: 100,
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writable: false,
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configurable: true
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});
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var obj = { prop: 12 };
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return obj.hasOwnProperty("prop") && obj.prop === 12;
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} finally {
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delete Object.prototype.prop;
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}
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}
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runTestCase(testcase);
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